CAS RN: 4731-65-1
Tris(2-methoxyphenyl)phosphine
Product Availability
Choose a grade to view its available package options.
7 package records7 with current stock2 grade groups
| Batch No. | Package | Availability | Warehouse | Inquiry |
|---|---|---|---|---|
| Batchno.20250917 | 1g / 5g / 25g / 100g | Confirm by inquiry | Shandong, Hebei, Shanghai | Inquiry |
| Batch No. | Package | Availability | Warehouse | Inquiry |
|---|---|---|---|---|
| Batchno.20250928 | 100g | In stock | Shanghai, Chengdu | Inquiry |
| Batchno.20260628 | 10g | In stock | Shanghai, Shenzhen | Inquiry |
| Batchno.20250324 | 1g | In stock | Shanghai, Shenzhen, Wuhan | Inquiry |
| Batchno.20251126 | 25g | In stock | Shanghai, Shenzhen | Inquiry |
| Batchno.20260524 | 500g | In stock | Shanghai | Inquiry |
| Batchno.20260120 | 5g | In stock | Shanghai, Shenzhen, Tianjin, Wuhan, Chengdu | Inquiry |
- Product code: SSC-154214
Verified Factory Data
Supply Overview & Packaging Options
Packaging options, recorded purity, stock quantity and ship-from location below are generated from the current factory data table for this CAS.
- Pack sizes on record: 1g, 5g, 10g, 25g, 100g
- Available purity: ≥97%
- Inventory rows with stock: 1
- Bulk packaging: confirmed by inquiry
Available Pack Sizes & Stock
Specific stock quantities are shown below. Price is not displayed online and is confirmed by inquiry.
| Pack Size | Recorded Purity | Available Qty | Ship From | Inquiry |
|---|---|---|---|---|
| 1g | ≥97% | 3 In Stock | Beijing | Inquiry |
| 5g | ≥97% | 0 Out of Stock | Shanghai | Inquiry |
| 10g | ≥97% | 0 Out of Stock | Shanghai | Inquiry |
| 25g | ≥97% | 0 Out of Stock | Shanghai | Inquiry |
| 100g | ≥97% | 0 Out of Stock | Shanghai | Inquiry |
4731-65-1 / tris(2-methoxyphenyl)phosphane
Basic Information
CAS
4731-65-1
Multi CAS
Yes
Molecular Formula
C21H21O3P
Molecular Weight
352.400000
Exact Mass
352.122832
InChI
InChI=1S/C21H21O3P/c1-22-16-10-4-7-13-19(16)25(20-14-8-5-11-17(20)23-2)21-15-9-6-12-18(21)24-3/h4-15H,1-3H3
InChIKey
IIOSDXGZLBPOHD-UHFFFAOYSA-N
Computed Properties
Structural Parameters
Heavy atom count
25
Aromatic heavy atom count
18
Fraction Csp3
0.14
Rotatable bonds
6
H-bond acceptors
3
Molar refractivity
104.8
TPSA
27.69
LogP / Solubility
WLOGP
3.47
MLOGP
3.07
XLogP3
4.5
Consensus LogP
3.68
Log S (ESOL)
-4.35
Class (ESOL)
Slightly soluble
Log S (Ali)
-4.96
Class (Ali)
Slightly soluble
Log S (SILICOS-IT)
-5.55
Class (SILICOS-IT)
Slightly soluble
ADME
GI absorption
High
BBB permeant
Yes
P-gp substrate
No
CYP1A2 inhibitor
Yes
CYP2C19 inhibitor
Yes
CYP2C9 inhibitor
Yes
CYP2D6 inhibitor
No
CYP3A4 inhibitor
Yes
Log Kp (skin permeation)
-2.41
Drug-likeness / Medicinal Chemistry
Lipinski
Yes
Ghose
Yes
Veber
Yes
Egan
Yes
Muegge
Yes
Bioavailability score
0.55
Brenk alerts
1
Leadlikeness
No
Synthetic Accessibility
2.5
Applications of CAS 4731-65-1
This compound is commonly used in catalysis and inorganic chemistry research, metal and coordination compound chemistry, organic synthesis and chemical building blocks, laboratory reagent and synthesis applications, general chemistry research and laboratory applications. Starshine Chemical supplies CAS 4731-65-1 for R&D and pilot-scale use, with flexible pack sizes and purity grades available.
Physical & Chemical Properties
| IUPAC Name | tris(2-methoxyphenyl)phosphane |
Safety Information (GHS)
Pictogram(s): GHS07. Signal word: Warning.
- H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
- H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H335 (97.9%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H413 (85.1%): May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard]
Precautionary statements: P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Request the SDS (Safety Data Sheet) for full hazard and safety documentation.
Storage & Handling
Storage: Store under inert gas. Avoid: Air Sensitive. For detailed hazard, storage and transport information, request the SDS (Safety Data Sheet) with your inquiry.
Quotation & Packaging
Prices are confirmed by inquiry. Request a quote for current pricing, minimum order quantity (MOQ) and lead time. The pack sizes listed on this page are reference options; custom pack sizes and bulk quantities are available on request.
Quality & Compliance
Specifications and purity shown on this page are based on batch records. A Certificate of Analysis (COA) is available on request. For research and further manufacturing use only — not for direct human or therapeutic use.
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